Finding the Fourth Proportional to 1,191,152.69, 1,786,797.15 and 338,157.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,152.69 : 1,786,797.15 = 338,157.62 : x
2. Step 2: Convert to fraction form
   1,191,152.69/1,786,797.15 = 338,157.62/x
3. Step 3: Cross multiply
   1,191,152.69x = 1,786,797.15 × 338,157.62
4. Step 4: Simplify right side
   1,191,152.69x = 604,219,071,666.78
5. Step 5: Solve for x
   x = 604,219,071,666.78/1,191,152.69
6. Step 6: Final answer
   x = 507,255.77